Results 51 to 60 of about 10,366 (216)

Group-cluster merging and the formation of starburst galaxies [PDF]

open access: yes, 1998
A significant fraction of clusters of galaxies are observed to have substructure, which implies that merging between clusters and subclusters is a rather common physical process of cluster formation. It still remains unclear how cluster merging affects
Barger A. J.   +8 more
core   +2 more sources

The diverse evolutionary pathways of post-starburst galaxies [PDF]

open access: yesNature Astronomy, 2019
Published in Nature Astronomy, 25th March 2019 (submitted version available on arxiv only). The final accepted version is available for all to read here https://rdcu.be/bsQIC. Corresponding author: V. Wild.
Pawlik, M.M.   +7 more
openaire   +7 more sources

Post-starburst Galaxies in the Centers of Intermediate-redshift Clusters

open access: yesThe Astrophysical Journal, 2022
Abstract We present results from MUSE spatially resolved spectroscopy of 21 post-starburst galaxies in the centers of eight clusters from z ∼ 0.3 to z ∼ 0.4. We measure spatially resolved star formation histories (SFHs), the time since quenching (t Q ), and the fraction of stellar
Ariel Werle   +19 more
openaire   +3 more sources

DESI Survey Validation Spectra Reveal an Increasing Fraction of Recently Quenched Galaxies at z ∼ 1

open access: yesThe Astrophysical Journal Letters, 2023
We utilize ∼17,000 bright luminous red galaxies (LRGs) from the novel Dark Energy Spectroscopic Instrument Survey Validation spectroscopic sample, leveraging its deep (∼2.5 hr galaxy ^−1 exposure time) spectra to characterize the contribution of recently
David J. Setton   +26 more
doaj   +1 more source

Halpha-Derived Star-Formation Rates For Three z ~ 0.75 EDisCS Galaxy Clusters [PDF]

open access: yes, 2005
We present Halpha-derived star-formation rates (SFRs) for three z ~ 0.75 galaxy clusters. Our 1 sigma flux limit corresponds to a star-formation rate of 0.10-0.24 solar mass per year, and our minimum reliable Halpha + [N II] rest-frame equivalent width ...
Barbaro G.   +11 more
core   +1 more source

Fading AGNs in Poststarburst Galaxies

open access: yesThe Astrophysical Journal, 2023
Abstract The role of active galactic nuclei (AGNs) in quenching galaxies and driving the evolution from star forming to quiescence remains a key question in galaxy evolution. We present evidence from the Mapping Nearby Galaxies at APO survey for fading AGN activity in 6/93 poststarburst galaxies. These six galaxies show extended emission
K. Decker French   +6 more
openaire   +3 more sources

Equivalent width Measurements in Optical Spectra of Galaxies in Local Clusters: Hints On the Star Formation History in Clusters

open access: yesOpen Astronomy, 2011
Equivalent widths of spectral lines in the optical spectra of galaxies are commonly used to characterize their stellar populations and to get some insight on their evolution.
Fritz Jacopo   +3 more
doaj   +1 more source

Spatially Resolved Spectroscopy of Starburst and Post-Starburst Galaxies in The Rich z~0.55 Cluster CL0016+16

open access: yes, 2010
We have used the Low Resolution Imaging Spectrograph (LRIS) on the W.M. Keck I telescope to obtain spatially resolved spectroscopy of a small sample of six post-starburst and three dusty-starburst galaxies in the rich cluster CL0016+16 at z=0.55.
Harald Kuntschner   +4 more
core   +1 more source

Post‐starburst galaxies and the transformation of blue into red galaxies [PDF]

open access: yesAstronomische Nachrichten, 2009
AbstractWe present deep single‐dish radio observations of a sample of nearby post‐starburst galaxies (0.05 < z < 0.1). About 50% of these post‐starburst galaxies are detected at 21 cm, with HI masses of ∼109 M⊙, up to ∼1010 M⊙. These post‐starburst galaxies are as gas‐rich as spiral galaxies with comparable luminosities. There appears to exist no
De Rijcke, Sven   +4 more
openaire   +2 more sources

Excess Of Post-Starburst Galaxies In Distant Galaxy Clusters

open access: yes, 2017
I present a study on the impact of environment on galaxy evolution in distant galaxy clusters between redshifts 0.5 and 1.0. We find candidate galaxy clusters by applying a friends-of-friends algorithm to the deep photometric data of the UKIDSS Ultra-Deep Survey. Through studying the stellar mass functions, we reveal a strong excess of low-mass rapidly-
Socolovsky, Miguel   +3 more
openaire   +2 more sources

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